Addition
Subtraction
Rounding
Addition/Subtraction
100

123+214

337

100

584-231

353

100

Round 32 to the nearest 10

30

100

240+135

375

200

456+328

784

200

675-348

327

200

Round 68 to the nearest 10

70

200

789-423

366

300

589+374

963

300

812-435

377

300

Round 55 to the nearest 10

60

300

516+287

803

400
347+585

932

400

703-268

435

400

Round 101 to the nearest 10

100

400

905-348

557

500

978+845

1823

500

900-467

433

500

Round 175 to the nearest 10

180

500

1245-879

366

M
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